PAULDING COUNTY. 339 



S. macrothyris, Hall), Terebratula, Strophomena, Cyathophyllum, Aulopora, 

 Calopora, and various fine incrusting corals. 



More enduring and persistent stone belonging to the Hamilton, over- 

 lying the beds at Mr. Doyle's, is seen S. E. \ section 19, Auglaize, with 

 a dip north and north-east This is owned and quarried by Smith Mead. 

 It is near the highway bridge, east of Junction. This place furnishes 

 flux for the furnace near Cecil. The beds are hard, blue, and crystalline, 

 and very similar to the limestone quarried at Sandusky and Delaware, 

 yet it is almost unfossiliferous, although it contains one or two Cyatho- 

 phylloids and a Favosites. It also holds considerable chert. 



Thomas Columbia's quarry is in similar stone, but a few rods below Mr. 

 Mead's. Still further north the same or similar beds are quarried on 

 section 17, in Defiance, Defiance county, by Town Newton, for flux for 

 the Paulding furnace. Dip still north and north-east. 



In section 29, Paulding township, the bed of the Platrock shows vari- 

 ous indications of the Hamilton in situ in the bed of the stream, on land 

 of Judge A. S. Latty and of P. W. Hardesty. Many large fragments 

 and some pieces of black slate are seen along the bed of the stream, and 

 there is a noticeable ripple in the current. The indications extend over 

 the space of nearly a mile, yet the actual beds cannot be seen exposed. 



The Corniferous Limestone. — This term in general is made to cover con- 

 siderably more than is herein intended to be described, as already ex- 

 plained. It is here meant to apply specially to a separate and distinct 

 member of the Corniferous group, as described in the Ohio reports by 

 Dr. Newberry, viz., to the light-colored and very fossiliferous layers that 

 are first below the blue limestone above described as Hamilton, and 

 which in the report on Delaware county are mentioned as the " Delhi 

 beds," but parallelized with the Corniferous limestone of New York. 

 This limestone has been observed at two points only in the county. It 

 makes a broad surface exposure — which gives name to the creek — at the 

 mouth of the Flatrock, and there dips toward the north-east, passing 

 below the Hamilton. At this place there has been but little artificial 

 working. It is owned here by Judge A. S. Latty and Calvin L. Noble. 

 The fossils seen are largely species of corals, with the usual associated 

 brachiopods. The same beds are wrought for quicklime — N. W. \ sec- 

 tion 32, Auglaize — by Wm. H. Mansfield. 



At Antwerp, the Corniferous limestone appears in the Maumee, and is 

 wrought for flux for the Antwerp furnace. About three feet only are 

 shown by the operation of the quarrymen; but the same stone is said to 

 extend downward three feet further, and to be succeeded then by a " rot- 

 ten sandstone," that name being very often applied to a coarse granular' 



